Home / 318,622.10-477,934.36-129,086.01

Finding the Fourth Proportional to 318,622.10, 477,934.36 and 129,086.01

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Solution

The fourth proportional to 318,622.10, 477,934.36 and 129,086.01 is: 193,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,622.10 : 477,934.36 = 129,086.01 : x
  2. Step 2: Convert to fraction form
    318,622.10/477,934.36 = 129,086.01/x
  3. Step 3: Cross multiply
    318,622.10x = 477,934.36 × 129,086.01
  4. Step 4: Simplify right side
    318,622.10x = 61,694,639,251.59
  5. Step 5: Solve for x
    x = 61,694,639,251.59/318,622.10
  6. Step 6: Final answer
    x = 193,629.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.